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Old 2020-09-15, 13:58   #6
R. Gerbicz
 
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"Robert Gerbicz"
Oct 2005
Hungary

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Quote:
Originally Posted by drmurat View Post
yes I guess that the number 6 x 10 ^ (900.000.000.000) + 18 x 10 ^ ( 450.000.000.000) + 1 also is not belong to twin prime number
Yes, that is true, since if N denotes your number then N+2 is divisible by 3 and N-2 is divisible by 107.
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